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Cushion|Natural|GIA

0.63ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1545428090

Certificate GIA 1545428090

Diamond specifications and retailer prices

From $905 CAD
$648 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $905 CAD at Blue Nile
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Blue Nile

About this 0.63ct natural cushion diamond

This 0.63ct natural cushion sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545428090. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.63
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle35.15°
Pavilion angle31.12°
OriginNatural
Grading LabGIA
CertificateGIA 1545428090
Dimensions5.67 × 4.36 × 2.99 mm
L/W Ratio1.30
Top View
5.67 mm4.36 mm0.63 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1545428090
Side View
Table 59.0%Crown 35.15°Girdle: STK-VTKPavilion 31.12°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $905 CAD|Low: $905 CAD|High: $1,332 CAD|Avg: $1,089 CAD|-0.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Blue Nile$905 CAD
Retailer 3$908 CAD
Retailer 4$1,077 CAD
Retailer 2$1,151 CAD
Retailer 6$1,159 CAD
Retailer 5$1,332 CAD

2 data points across 6 retailers

1 retailer

B+
Blue Nile
29214488 · Oct 29
$905 CAD
$648 USD
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Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.63ct Cushion
$905 CAD